plate-mounted Class 2 energy limiting transformer designed for reliable power distribution in industrial heating and air conditioning control circuits

High-quality construction maintains capacitance stability across extreme operating temperatures

Resistored Design: Integrated resistor extends tank life by mitigating electrolytic corrosion

plug-and-play fit to maintain accurate HVAC temperature monitoring

Zonefirst OAS Air Sensor plate-mounted Class 2 energy limitingFor veteran technicians managing dual fuel HVAC systems, the ZoneFirst OAS Air Sensor is a critical component for achieving precise balance point control. This outdoor air sensor is engineered specifically to integrate with ZoneFirst H32, H32P, and MDP3 control panels, providing real time ambient temperature data to the fossil fuel heat pump logic. By utilizing a high accuracy thermistor housed in a UV stabilized polycarbonate enclosure, the OAS